
Most Prevalent Existing Vegetation Types
Based on LANDFIRE’s Existing Vegetation Type data, the following map and bar chart depicts the most dominant Ecological Systems as of 2023.
Existing Vegetation Types with minor representation removed from map and chart below for clarity. Grey areas indicate where minor types were removed.
Percentage of oak-containing ecosystems by HUC 12 watershed
The map below depicts the percentage of each watershed that was mapped as having oak-containing EVTs as of 2023 (see methods below for list of included Ecological Systems). These EVTs have a mix of tree species. For example, the North-Central Interior Dry-Mesic Oak Forest and Woodland, while dominated by oak species historically may be filling in with other species such as red maple, sugar maple and tulip poplar to become more prevalent. As such this map does not necessarily indicate where oaks are exclusively-this situation is rare on the landscape today.